Oil prices plunged after OPEC announced that it would not be cutting production, but lower fuel costs meant good news for many major companies.
The most notable winners were the airlines, which saw a significant portion of their costs go to fuel every year. In 2013 alone, U.S. carriers spent about $48.20 billion on fuel, according to the Department of Transportation.
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Given these costs, U.S.-traded airline stocks all boasted major gains: JetBlue, American Airlines, Southwest and Delta all saw a more than 5 percent spike. United Continental was the big winner, gaining over 8 percent on the day.